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Chinese Paper Standard Size Inquiry
Online inquiry for Chinese standard D-series paper sizes, providing a millimeter width-height comparison table, an essential tool for design and printing.
THR Target Heart Rate Calculator
Personalized target heart rate calculator, helping you exercise scientifically based on age, resting heart rate, and fitness level.
Deceased First Seven Day Calculator
Conveniently calculate key memorial dates such as the First Seven, Third Seven, Fifth Seven, and Seventh Seven for the deceased, supporting Lunar and Gregorian calendar input, aiding in the preservation of traditional customs and the expression of grief.
Trigonometric Function Calculator
Calculate sine, cosine, tangent, and other trigonometric function values online, supporting radian input and decimal place settings.
Jaundice Index Calculator
Online jaundice index calculation tool, quickly assesses jaundice status and normal range by entering bilirubin levels and whether it's a newborn.
Ad CPM Calculator
Quickly calculate ad Cost Per Thousand Impressions (CPM), optimize ad budget, and enhance marketing effectiveness.
